36743997817 has 2 divisors, whose sum is σ = 36743997818. Its totient is φ = 36743997816.

The previous prime is 36743997809. The next prime is 36743997821. The reversal of 36743997817 is 71879934763.

36743997817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36647742096 + 96255721 = 191436^2 + 9811^2 .

It is a cyclic number.

It is not a de Polignac number, because 36743997817 - 2³ = 36743997809 is a prime.

It is not a weakly prime, because it can be changed into another prime (36743997847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18371998908 + 18371998909.

It is an arithmetic number, because the mean of its divisors is an integer number (18371998909).

Almost surely, 2^36743997817 is an apocalyptic number.

It is an amenable number.

36743997817 is a deficient number, since it is larger than the sum of its proper divisors (1).

36743997817 is an equidigital number, since it uses as much as digits as its factorization.

36743997817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48009024, while the sum is 64.

The spelling of 36743997817 in words is "thirty-six billion, seven hundred forty-three million, nine hundred ninety-seven thousand, eight hundred seventeen".